chore(package): update grunt-release to version 0.14.0 (#1961)

https://greenkeeper.io/ [skip ci]

Author: greenkeeperio-bot

Diff for: package.json

@@ -66,7 +66,7 @@
     "grunt-david": "~0.7.0",
     "grunt-env": "^0.4.1",
     "grunt-mocha-test": "^0.12.7",
-    "grunt-release": "^0.13.0",
+    "grunt-release": "^0.14.0",
     "gulp": "^3.9.1",
     "gulp-if": "^2.0.1",
     "gulp-mocha": "^2.2.0",